Solar Flares in the UV from SORCE SOLSTICE

Details Solar Flares in the UV from SORCE SOLSTICE Solar Flares in the UV from SORCE SOLSTICE

May 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...204.0216s&link_type=abstract

American Astronomical Society Meeting 204, #02.16; Bulletin of the American Astronomical Society, Vol. 36, p.670

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Scientific paper

The SOLar-STellar Irradiance Comparison Experiment (SOLSTICE) on the SOlar Radiation Climate Experiment (SORCE) measures the solar irradiance from 115-300 nm. During the solar storms of October and November of 2003, we observed large increases in the emission lines from many transition region species during several flare events.
The greatest impact of a flare on the solar UV spectrum is in the brief impulsive phase. In the timespan of just a few minutes, the strength of an emission feature can rise by a factor of 10 and then subside back to its quiescent level over the course of an hour or more.
The SOLSTICE observing technique scans the solar spectrum at a variety of rates, some scans taking 30 minutes to complete while others measure the entire wavelength range in a few minutes. The flares reported here occurred while SOLSTICE was sampling a different pieces of the solar spectrum. The combined information from the observed flares provides new insight concerning the spectral signature as a function of both time and wavelength.

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